Home / 2,184.18-3,276.81-723.36

Finding the Fourth Proportional to 2,184.18, 3,276.81 and 723.36

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Solution

The fourth proportional to 2,184.18, 3,276.81 and 723.36 is: 1,085.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.18 : 3,276.81 = 723.36 : x
  2. Step 2: Convert to fraction form
    2,184.18/3,276.81 = 723.36/x
  3. Step 3: Cross multiply
    2,184.18x = 3,276.81 × 723.36
  4. Step 4: Simplify right side
    2,184.18x = 2,370,313.28
  5. Step 5: Solve for x
    x = 2,370,313.28/2,184.18
  6. Step 6: Final answer
    x = 1,085.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.